A mine wear-resistant shovel

Abstract

The utility model relates to the technical field of engineering machinery wear -resistant parts provides a kind of mining wear -resistant bucket, comprising: bucket body, front blade, tooth seat and bucket tooth;The front edge of the bucket body is equipped with front blade, multiple tooth seats are arranged in the front edge of front blade along the width direction interval of front blade, the bucket tooth is detachably connected with tooth seat;The front blade is equipped with multiple front blade wear -resistant blocks on the earth-facing working surface, the bucket tooth is equipped with multiple bucket tooth wear -resistant blocks on the earth-facing working surface;The front blade wear -resistant block and bucket tooth wear -resistant block are all prepared by additive manufacturing using metal-based cermet composite material.The utility model releases stress through wear -resistant block array, avoids continuous wear -resistant layer through crack, realizes material and front blade and bucket tooth tumbling contact using the gap between wear -resistant block, reduces abrasion, effectively improves the wear resistance of part and service life.

Description

Technical Field

[0001] This utility model relates to the technical field of wear-resistant components for engineering machinery, specifically to a wear-resistant shovel bucket for mining. Background Technology

[0002] In mining and earthmoving projects, the front cutting edge and bucket teeth of excavator buckets, as components that directly cut and load materials, are subjected to high-intensity impact loads and abrasive wear over long periods. Existing buckets typically have tooth holders welded to the leading edge of the front cutting edge and on which the bucket teeth are installed. While the bucket teeth are replaceable, in sand, gravel, rock-filled, or weathered rock conditions, the working face of the front cutting edge and the area around the tooth holders are prone to wear grooves and cracks due to abrasive erosion and impact loads. This leads to thinning of the front cutting edge, a decrease in local stiffness, and stress concentration and fatigue cracks at the weld toe of the tooth holder, resulting in failures such as loosening, cracking, or even detachment of the tooth holder. Simultaneously, the increased cutting resistance after the bucket teeth wear further exacerbates the impact at the leading edge and structural damage.

[0003] In traditional continuous welding or whole-plate wear-resistant reinforcement solutions, once the wear-resistant layer cracks locally, the cracks are prone to propagate along the continuous area and cause the entire piece to peel off. At the same time, the stress on the area between the front cutting edge teeth and the working surface of the bucket teeth is not uniform. Using a single wear-resistant layer often makes it difficult to meet the differentiated protection needs of the high-impact zone and the high-slip zone, so improvements are needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a mining wear-resistant bucket that is compact, easy to operate, and has high structural strength, in order to overcome the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A wear-resistant mining bucket includes: a bucket body, a front cutting edge, tooth holders, and bucket teeth; the front edge of the bucket body is provided with a front cutting edge, and multiple tooth holders are arranged at intervals along the width direction of the front cutting edge on the front edge of the front cutting edge, and the bucket teeth are detachably connected to the tooth holders; multiple front cutting edge anti-wear blocks are provided on the soil-facing working surface of the front cutting edge, and multiple bucket tooth anti-wear blocks are provided on the soil-facing working surface of the bucket teeth; both the front cutting edge anti-wear blocks and the bucket tooth anti-wear blocks are made of metal-based metal-ceramic composite material through additive manufacturing.

[0006] As a further improvement of this utility model, multiple front edge wear-resistant blocks are staggered along the middle and lower part of the front edge plate to form a continuous but segmented wear-resistant coverage area on the soil-facing working surface of the front edge plate; multiple bucket tooth wear-resistant blocks are arranged in a matrix to form a continuous but segmented wear-resistant coverage area on the soil-facing working surface of the bucket teeth.

[0007] As a further improvement of this utility model, there are gaps between two adjacent front edge anti-wear blocks and between two adjacent bucket tooth anti-wear blocks, and the width of the gap is 50% to 80% of the size of the material to be excavated.

[0008] As a further improvement of this utility model, the height of the front cutting edge anti-wear block and the bucket tooth anti-wear block is 5mm to 10mm, so as to realize that the material to be excavated can roll into contact with the front cutting edge and the bucket tooth.

[0009] As a further improvement of this utility model, the bucket tooth anti-wear block includes a middle row of anti-wear blocks and a side row of anti-wear blocks; the middle row of anti-wear blocks are arranged sequentially and at intervals along the central axis of the bucket tooth, from the tip region at the front end of the bucket tooth to the transition region at the rear end; the side row of anti-wear blocks are located on both sides of the middle row of anti-wear blocks and are staggered and correspond to the middle row of anti-wear blocks.

[0010] As a further improvement of this utility model, both the middle row anti-wear block and the side row anti-wear block are rectangular block structures.

[0011] As a further improvement of this utility model, the front edge of the front cutting edge is also provided with a guard plate, and the tooth seat and the guard plate are alternately arranged.

[0012] As a further improvement of this utility model, the tooth seat and the guard plate are both welded to the front cutting edge plate; the bucket tooth anti-wear block is welded to the bucket tooth.

[0013] As a further improvement of this utility model, the bucket teeth and the tooth seat are detachably connected by a pin and a snap ring.

[0014] As a further improvement of this utility model, the front cutting edge plate is made of Q690E as the base material, and the bucket teeth are made of low-carbon alloy steel castings and forgings as the base material.

[0015] Compared with the prior art, the wear-resistant mining bucket of this utility model has the following beneficial effects: (1) By setting staggered anti-wear blocks on the front cutting edge working surface and matrix anti-wear blocks on the front teeth working surface, the impact load and thermal stress borne by the traditional continuous wear-resistant layer are dispersed to each anti-wear block unit in the array. The physical interval between the blocks is used to block the crack propagation path, effectively avoiding the through cracking and whole-piece peeling failure caused by stress concentration in the continuous wear-resistant layer, and significantly improving the wear resistance reliability and service life of the front edge of the bucket.

[0016] (2) By setting the gap width between two adjacent wear-resistant blocks to 50% to 80% of the size of the material to be excavated, the material will roll rather than scrape and slide when it comes into contact with the front cutting edge and the soil-facing working surface of the bucket teeth, which further reduces the frictional wear of the bucket.

[0017] (3) The bucket teeth and the tooth holder are detachable. When the bucket teeth are worn to the limit, there is no need to cut the wear-resistant structure as a whole or repair it on a large scale. Only the bucket teeth need to be replaced to restore the working capacity, which greatly shortens the downtime maintenance time and reduces the maintenance cost of the whole life cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structural principle of the wear-resistant mining bucket in a specific embodiment of this utility model; Figure 2 This is a top view of the wear-resistant mining bucket in a specific embodiment of the present utility model; Figure 3 This is a schematic diagram showing the arrangement of the front edge anti-wear blocks in a specific embodiment of this utility model; Figure 4 This is a schematic diagram of the structural principle of the front blade plate in a specific embodiment of this utility model; Figure 4 (a) in the image is the front view of the front cutting edge plate. Figure 4 (b) in the middle is Figure 4 (a) is a cross-sectional view along the AA direction, where β represents the included angle of inclination at the front end of the front blade. Figure 5 This is a schematic diagram of the connection structure between the tooth holder and the bucket tooth in a specific embodiment of this utility model; Figure 6 This is a schematic diagram showing the arrangement of the anti-wear blocks for the bucket teeth in a specific embodiment of this utility model.

[0019] Legend: 100, Bucket body; 200, Front cutting edge plate; 201, High impact zone; 202, Segmented wear-resistant coverage area; 300, Tooth seat; 400, Bucket tooth; 401, Pin; 402, Snap ring; 501, Guard plate; 502, Front cutting edge anti-wear block; 600, Bucket tooth anti-wear block; 601, Middle row anti-wear block; 602, Side row anti-wear block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0021] In the description of this utility model, it should be understood that the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] Example like Figure 1 and Figure 2 As shown, the wear-resistant mining bucket of this utility model includes a bucket body 100, a front cutting edge 200, tooth holders 300, and bucket teeth 400. The front cutting edge 200 is located at the front edge of the bucket body 100, and multiple tooth holders 300 are spaced apart along the width direction of the front cutting edge 200 at the front edge of the front cutting edge 200. The bucket teeth 400 are detachably connected to the tooth holders 300. Specifically, the front cutting edge 200 is typically fixed to the front end of the bucket body 100 by welding or high-strength bolts, serving as the basic load-bearing component for the bucket to directly cut into materials. The tooth holders 300 serve as the mounting base for the bucket teeth 400 and are evenly distributed along the transverse edge of the front cutting edge 200. Their number can be adjusted according to the bucket specifications and operating conditions; for example, 5 to 9 tooth holders can be provided in a large mining bucket. The detachable connection between the bucket teeth 400 and the tooth holder 300 can be achieved through various means such as pin-shaft snap ring engagement, threaded connection, or wedge locking, so that the bucket teeth can be quickly replaced on-site after wear without cutting or returning the bucket body to the factory for repair.

[0024] In this embodiment, the front cutting edge plate 200 uses Q690E high-strength low-alloy structural steel as the base material to ensure the overall structural strength and toughness; the bucket teeth 400 uses low-carbon alloy steel castings and forgings as the base material to ensure good impact toughness and weldability. Multiple front cutting edge anti-wear blocks 502 are provided on the soil-facing working surface of the front cutting edge plate 200, and multiple bucket tooth anti-wear blocks 600 are provided on the soil-facing working surface of the bucket teeth 400. Both the front cutting edge anti-wear blocks 502 and the bucket tooth anti-wear blocks 600 are made of metal-based metal-ceramic composite materials through additive manufacturing.

[0025] It should be noted that the metal-based metal-ceramic composite material in this embodiment is a composite material in which metals (such as nickel-based, cobalt-based, or iron-based alloys) are used as the binder phase and ceramic particles (such as WC, TiC, Cr3C2, etc.) are used as the reinforcing phase. This type of material combines the toughness of metals with the high hardness and high wear resistance of ceramics, making it particularly suitable for heavy-duty abrasive wear conditions such as those encountered in mining machinery. Additive manufacturing processes include, but are not limited to, laser cladding, plasma-transferred arc cladding (PTA), high-velocity oxygen fuel spraying (HVOF), and electric arc methods. Through additive manufacturing, a metallurgical bond is formed between the wear-resistant block and the matrix, resulting in high bonding strength and resistance to peeling.

[0026] In this embodiment of the mining wear-resistant bucket, during operation, the material first contacts the working surfaces of the bucket teeth 400 and the front cutting edge 200. Due to the high surface hardness of the wear-resistant blocks, they can effectively resist the cutting and impact wear of the material.

[0027] Furthermore, the front cutting edge 200 has staggered front cutting edge anti-wear blocks 502 on its working surface facing the ground. "Staggered arrangement" here means that the front cutting edge anti-wear blocks 502 are not arranged in neatly aligned rows and columns, nor are they a continuous wear-resistant layer covering the entire surface, but rather distributed on the surface of the front cutting edge 200 in an array with staggered front-to-back and spaced left-to-right spacing. It should be understood that although attached... Figure 3 The illustration shows a specific staggered pattern, but in other embodiments, as long as there are physical gaps between adjacent wear-resistant blocks and they do not form a continuous through-plane, they all fall within the scope of the staggered arrangement referred to in this utility model. The staggered arrangement structural design fundamentally changes the traditional bucket's protection mode, which relies on large-area continuous welded layers or a single piece of wear-resistant liner. The wear-resistant block units decompose the huge impact stress and thermal stress originally concentrated within the continuous layer into multiple independent micro-stress units, effectively avoiding the problem of through-crack propagation and complete peeling failure caused by local overload.

[0028] Furthermore, the bucket tooth 400 has a matrix-style anti-wear block 600 on its working surface facing the ground. The term "matrix-style" refers to the multi-row, multi-column array distribution of the anti-wear blocks 600 on the working surface of the bucket tooth 400, covering the critical wear area from the tip to the root of the tooth. Unlike traditional solutions that only set a single wear-resistant strip along the centerline of the tooth or weld wear-resistant ribs to the edges, the matrix layout adopted in this embodiment can more comprehensively adapt to the complex three-dimensional stress state experienced by the bucket tooth during actual excavation. Specifically, when the bucket tooth 400 cuts into the ore pile, not only does the tip bear direct impact, but the sides and transition zone also bear intense lateral shear and abrasive wear. The matrix-distributed anti-wear block group can provide uniform and sufficient wear-resistant protection in these different stress areas, avoiding premature wear-through of the bucket tooth and subsequent scrapping. In addition, the gaps between the wear-resistant blocks in the matrix also serve as a crack-stopping buffer and an auxiliary slag discharge mechanism, and can also enable the excavated material to tumble and contact the 400 working face of the bucket teeth, further improving the service reliability of the bucket teeth under extremely harsh working conditions.

[0029] In this embodiment, the guard plate 501 is disposed at the front end of the front cutting edge plate 200 and located between two adjacent tooth seats 300; the front cutting edge anti-wear block 502 is located behind the guard plate 501 and is staggered along the middle and lower part of the front cutting edge plate 200 to achieve a continuous but segmented wear-resistant coverage area 202 on the soil-facing working surface of the front cutting edge plate 200. Combined with Figure 2 , Figure 3 and Figure 4 As shown, the area on the front cutting edge 200 corresponding to the adjacent tooth seat 300 is the high-impact zone 201 when material cuts in. This area bears the largest instantaneous impact load, so a larger and thicker guard plate 501 is placed here to preferentially withstand the direct impact and severe friction of the ore. The front cutting edge anti-wear block 502 located below and behind the guard plate 501 mainly enables the material to tumble and contact the working surface of the front cutting edge 200, reducing the scraping and wear of the material on the surface of the front cutting edge 200. By arranging these small anti-wear blocks 502 in multiple rows in the lower middle part of the front cutting edge 200, the continuity of wear-resistant protection is ensured on a macroscopic scale, avoiding large-area exposure of the substrate, while forming an independent segmented structure on a microscopic scale. By using the continuous but segmented wear-resistant coverage area 202, the problem of through cracking caused by the inability to release stress in traditional integral wear-resistant plates is effectively solved, while achieving differentiated protection for different wear mechanisms and significantly improving the utilization efficiency of materials.

[0030] Furthermore, there is a gap between two adjacent front-edge wear-resistant blocks 502, and the width of the gap is 50% to 80% of the size of the material to be excavated. For example, if the average particle size of the ore pile to be excavated is 100mm, the gap width between two adjacent front-edge wear-resistant blocks 502 can be set between 50mm and 80mm. The purpose of the gap design is to minimize the scouring and wear of the material on the working surface of the front-edge plate, so that the material flows away after tumbling contact with the front-edge wear-resistant block 502.

[0031] In this embodiment, the bucket tooth anti-wear block 600 includes a middle row of anti-wear blocks 601 and a side row of anti-wear blocks 602; the middle row of anti-wear blocks 601 are arranged sequentially along the central axis of the bucket tooth 400, from the front tip region to the rear transition region of the bucket tooth 400; the side row of anti-wear blocks 602 are located on both sides of the middle row of anti-wear blocks 601 and are staggered with the middle row of anti-wear blocks 601. Figure 6 As shown, the matrix layout of the middle and side rows in this embodiment is not a simple geometric arrangement, but a biomimetic mechanical adaptation design based on the complex three-dimensional stress state of the bucket teeth 400 in actual digging operations. Specifically, when the bucket teeth 400 cut into the ore pile, its tip and central axis area bear the greatest positive impact load and axial sliding wear. Therefore, arranging the middle row anti-wear blocks 601 sequentially along the axis can form a high-strength impact-resistant ridge to preferentially resist positive destructive forces. At the same time, the two sides of the bucket teeth 400 bear strong lateral shear forces and abrasive scouring during the loading process. The side row anti-wear blocks 602 are arranged on both sides of the middle row anti-wear blocks 601 in an alternating manner, which can effectively share the lateral load. It should be understood that, although Figure 6 The present invention illustrates a specific staggered pattern, but in other embodiments, as long as the side anti-wear blocks 602 and the middle anti-wear blocks 601 are spatially misaligned and correspond to each other and jointly cover the critical wear area of ​​the bucket teeth, they all fall within the scope of staggered correspondence as referred to in this utility model.

[0032] Furthermore, the front edge anti-wear block 502, the middle row anti-wear block 601, and the side row anti-wear block 602 are all rectangular block structures. The length and width of these rectangular block structures can be flexibly set according to the actual size of the front edge plate 200 and the bucket teeth 400, as long as a continuous but segmented wear-resistant coverage area is formed on the soil-facing working surfaces of the front edge plate 200 and the bucket teeth 400. From a manufacturing process perspective, the regular edges and geometric symmetry of the rectangular blocks facilitate precise alignment and rapid tack welding during positioning, significantly improving assembly efficiency. More importantly, the regular rectangular outline helps control the uniformity of heat input during welding, reducing stress concentration and welding deformation caused by abrupt shape changes, thus ensuring the metallurgical bonding quality between the wear-resistant blocks and the base materials of the front edge plate 200 and the bucket teeth 400. From a service performance perspective, the rectangular blocks have isotropic wear resistance reserves when subjected to multi-directional wear, preventing overall failure due to premature wear in a specific direction and extending the effective protection time within a single maintenance cycle.

[0033] Furthermore, the heights of the front edge anti-wear block 502, the middle row anti-wear block 601, and the side row anti-wear block 602 are all 5mm to 10mm. This height range is optimized to provide sufficient wear-resistant layer thickness while ensuring that the material to be excavated makes tumbling contact with the front edge plate 200 and the bucket teeth 400 rather than sliding friction, thereby reducing the coefficient of friction and wear rate.

[0034] Specifically, when the height of the wear-resistant block is set to 5 mm, it is suitable for light-load or moderate-wear conditions, providing basic wear protection without adding much additional cutting resistance. When the height is set to 10 mm, it is the preferred value for most hard rock mines, balancing wear life and digging efficiency. Moreover, as the working time of the bucket increases, the working surfaces of the front cutting edge 200 and the bucket teeth 400 will thin due to wear, resulting in a greater height difference between the working surfaces and the wear-resistant block. This facilitates material tumbling on the wear-resistant block and further reduces the scraping contact between the material and the working surface.

[0035] In this embodiment, the bucket teeth 400 and the tooth holder 300 are detachably connected by a pin 401 and a retaining ring 402. Figure 5 As shown, the tooth holder 300 has a through transverse mounting hole. After the tail of the bucket tooth 400 is inserted into the tooth holder 300, its pin hole is coaxially aligned with the mounting hole of the tooth holder 300. The pin 401 passes through the aligned hole to achieve axial positioning and radial load bearing. The snap ring 402 is embedded in the end of the pin 401 or in a pre-set annular groove on the side wall of the tooth holder 300, using its own elastic deformation to generate axial locking force to prevent the pin 401 from axially moving or accidentally coming out under the severe vibration and alternating loads generated during excavation operations. It should be understood that although Figure 5A specific transverse pin engagement form is shown, but in other embodiments, as long as the principle of detachable connection that transmits shear load through the pin and uses elastic snap ring to achieve axial anti-disengagement is met, they all fall within the scope of the pin and snap ring connection referred to in this utility model. For example, the pin can also be arranged vertically or obliquely, and the snap ring can also be replaced with a locking pin with an elastic arm or a tightening sleeve, etc., as an effective locking element.

[0036] In actual maintenance operations, the above-mentioned connection structure supports a standardized and rapid replacement process. When the bucket tooth 400 wears to its limit and needs to be replaced, the operator only needs to use a special tool to pry out or knock out the retaining ring 402 to release the axial constraint on the pin 401; then, the pin 401 is pulled out of the mounting hole, which separates the old bucket tooth 400 from the tooth seat 300; after installing the new bucket tooth 400, the operation of inserting the pin 401 and pressing in the retaining ring 402 is performed in reverse to complete the reset. The entire process does not require the use of hot processing equipment such as gas cutting, carbon arc gouging, or electric arc welding, nor does it require waiting for the weld to cool or performing non-destructive testing. The replacement time can be shortened from several hours for traditional welded bucket teeth to a dozen minutes. This significantly reduces equipment downtime losses caused by maintenance downtime, and is especially suitable for scenarios with extremely high requirements for operating rates, such as continuous mining.

[0037] To further improve the reliability of the connecting mechanism under harsh working conditions, this embodiment also optimizes the design of the auxiliary structure. For example, a guide chamfer is provided at the end of the pin 401 or at the pin hole entrance of the gear seat 300. This chamfer not only facilitates the quick centering and insertion of the pin 401 during assembly, but also effectively scrapes away mud, sand, and mineral powder adhering to the pin surface, preventing foreign objects from entering the mating surface and causing jamming or abnormal wear. In addition, an anti-loosening limiting structure can be added at the mating interface between the pin 401 and the gear seat 300, such as machining a plane or groove on the pin surface to mate with the protrusion in the gear seat, restricting the pin 401 from rotating around its own axis, thereby preventing the retaining spring 402 from prematurely fatigued and failing due to rotational friction.

[0038] In this embodiment, the tooth base 300 and the guard plate 501 are both welded to the front cutting edge plate 200, forming a robust integral structure; the bucket tooth wear-resistant block 600 is welded to the bucket tooth 400. The welded connection provides a high-strength metallurgical bond, ensuring that the wear-resistant block does not detach or shift under severe impact loads. In specific manufacturing and maintenance practices, a composite welding process combining fillet welds and plug welds is preferred for fixing the guard plate 501. The fillet welds are arranged circumferentially along the wear-resistant block, bearing the main shear load and sealing the gaps to prevent mud and sand intrusion; the plug weld holes are opened in the middle of the wear-resistant block body, anchoring the central area of ​​the guard plate 501 to the base of the front cutting edge plate 200 through penetration filling, effectively dispersing the stress concentration of the edge welds and significantly improving the anti-peeling ability. For the bucket tooth wear-resistant block 600, since its mounting surface is curved and space is limited, multi-layer, multi-pass welding with small-diameter welding rods or gas shielded welding can be used to ensure weld formation quality and penetration depth. To control substrate deformation and residual stress caused by welding heat input, the welding sequence should follow the principle of starting with larger components and alternating symmetrically. For example, when installing anti-wear blocks on the front cutting edge plate 200, all guard plates 501 should be positioned and welded first, and then the front cutting edge anti-wear blocks 502 should be welded sequentially from the center to both sides, alternating symmetrically from top to bottom, so that thermal deformation cancels each other out and ensures that the overall flatness of the front cutting edge plate 200 meets the assembly requirements. In the welding of the bucket tooth anti-wear blocks 600, the middle row of anti-wear blocks 601 can be tack welded first, and then the left and right row anti-wear blocks 602 can be welded symmetrically. After welding, the weld spatter and sharp corners should be ground and rounded to reduce stress concentration and abrasion resistance. The number, size, and row spacing of the anti-wear blocks can be matched and selected according to the bucket tooth profile and target life, as long as they do not interfere with assembly, do not affect replacement, and cover high wear areas.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A wear-resistant mining bucket, characterized in that, include: The bucket body (100), front cutting edge (200), tooth holder (300), and bucket teeth (400) are provided. The front edge of the bucket body (100) is provided with a front cutting edge (200), and multiple tooth holders (300) are arranged at intervals along the width direction of the front cutting edge (200) on the front edge of the front cutting edge (200). The bucket teeth (400) are detachably connected to the tooth holders (300). Multiple front cutting edge anti-wear blocks (502) are provided on the soil-facing working surface of the front cutting edge (200), and multiple bucket tooth anti-wear blocks (600) are provided on the soil-facing working surface of the bucket teeth (400). Both the front cutting edge anti-wear blocks (502) and the bucket tooth anti-wear blocks (600) are made of metal-based metal-ceramic composite materials through additive manufacturing.

2. The wear-resistant mining bucket according to claim 1, characterized in that, Multiple front edge wear-resistant blocks (502) are staggered along the middle and lower part of the front edge plate (200) to form a continuous but segmented wear-resistant coverage area on the soil-facing working surface of the front edge plate (200); multiple bucket tooth wear-resistant blocks (600) are arranged in a matrix to form a continuous but segmented wear-resistant coverage area on the soil-facing working surface of the bucket tooth (400).

3. The wear-resistant mining bucket according to claim 1, characterized in that, There are gaps between two adjacent front edge anti-wear blocks (502) and between two adjacent bucket tooth anti-wear blocks (600), and the width of the gap is 50% to 80% of the size of the material to be excavated.

4. The wear-resistant mining bucket according to claim 1, characterized in that, The height of the front edge anti-wear block (502) and the bucket tooth anti-wear block (600) is 5mm to 10mm, so as to enable the material to be excavated to roll into contact with the front edge plate (200) and the bucket tooth (400).

5. The wear-resistant mining bucket according to any one of claims 1 to 4, characterized in that, The bucket tooth anti-wear block (600) includes a middle row anti-wear block (601) and a side row anti-wear block (602); the middle row anti-wear block (601) is arranged sequentially along the central axis of the bucket tooth (400) and from the front tip area of ​​the bucket tooth (400) to the rear connecting transition area; the side row anti-wear block (602) is located on both sides of the middle row anti-wear block (601) and is staggered with the middle row anti-wear block (601).

6. The wear-resistant mining bucket according to claim 5, characterized in that, Both the middle row anti-wear block (601) and the side row anti-wear block (602) are rectangular block structures.

7. The mining wear-resistant bucket according to any one of claims 1 to 4, characterized in that, The front edge of the front cutting edge (200) is also provided with a guard plate (501), and the tooth seat (300) and the guard plate (501) are alternately arranged.

8. The wear-resistant mining bucket according to claim 7, characterized in that, The tooth holder (300) and the guard plate (501) are both welded to the front cutting edge plate (200); the bucket tooth anti-wear block (600) is welded to the bucket tooth (400).

9. The wear-resistant mining bucket according to any one of claims 1 to 4, characterized in that, The bucket teeth (400) and the tooth base (300) are detachably connected by a pin (401) and a snap ring (402).

10. The mining wear-resistant bucket according to any one of claims 1 to 4, characterized in that, The front cutting edge (200) is made of Q690E as the base material, and the bucket teeth (400) are made of low-carbon alloy steel castings and forgings as the base material.

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